ZeroWater water filter and TDS meter (Chalk Farm NW3)
This has barely been used and will be like new if rinsed on the outside. It's a filtration system to create distilled water with 0 dissolved solids. It worked for my purpose but I didn't really use it and it's time for it to be appreciated in a new home. Here is the item listing on Amazon https://www.amazon.co.uk/dp/B0BTFXPZK4
This offer has been gifted to someone and is no longer available.